17-letter words containing a, e, c, i, o, s
- nuclear-isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
- nursery education — education provided at a school for young children, usually from three to five years old
- objectionableness — The quality of being objectionable.
- off-site facility — An off-site facility is a facility which is not at the main industrial or commercial site.
- olympic peninsula — a large peninsula of W Washington
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on the pig's back — successful; established
- operations centre — a centre where activities of a business, organization, etc, are administrated and take place
- opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
- optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
- organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- orifice discharge — Orifice discharge is a model for calculating how quickly a fluid will come out of a punctured vessel or pipe.
- osculating circle — circle of curvature.
- outside broadcast — An outside broadcast is a radio or television programme that is not recorded or filmed in a studio, but in another building or in the open air.
- over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- over-conservative — disposed to preserve existing conditions, institutions, etc., or to restore traditional ones, and to limit change.
- pacific northwest — the region of North America lying north of the Columbia River and west of the Rockies
- pair of compasses — compass (def 7)
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
- papanicolaou test — Pap test.
- paradoxical sleep — REM sleep.
- passive obedience — unquestioning obedience to authority
- pernicious anemia — Pernicious anemia is a very severe blood disease.
- personal distance — personal space.
- personality clash — friction between two people who have different personalities or points of view
- personnel carrier — a vehicle used for transporting troops
- perspicaciousness — having keen mental perception and understanding; discerning: to exhibit perspicacious judgment.
- phenyl isocyanate — a liquid reagent, C 7 H 5 NO, having an unpleasant, irritating odor: used chiefly for identifying alcohols and amines.
- phototherapeutics — the branch of therapeutics that deals with the curative use of light rays.
- pitot-static tube — a device combining a Pitot tube with a static tube: used to measure airspeed.
- plastic explosive — a puttylike substance that contains an explosive charge, and is detonated by fuse or by remote control: used especially by terrorists and in guerrilla warfare.
- pocket battleship — a small heavily armed and armored warship serving as a battleship because of limitations imposed by treaty.
- point of purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- point reyes lilac — a prostrate shrub, Ceanothus gloriosus, of southern California, having leathery, roundish leaves and purplish or deep-blue flowers.
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- polar coordinates — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
- polioencephalitis — a disease characterized by inflammation of the gray matter of the brain.
- political science — a social science dealing with political institutions and with the principles and conduct of government.
- positive feedback — Electronics. the process of returning part of the output of a circuit, system, or device to the input, either to oppose the input (negative feedback) or to aid the input (positive feedback) acoustic feedback.
- potassium acetate — a white, crystalline, deliquescent, water-soluble powder, KC 2 H 3 O 2 , used chiefly as a reagent in analytical chemistry.
- potassium cyanide — a white, granular, water-soluble, poisonous powder, KCN, having a faint almondlike odor, used chiefly in metallurgy and photography.
- prairie provinces — the Canadian provinces of Manitoba, Saskatchewan, and Alberta, which lie in the N Great Plains region of North America: the chief wheat and petroleum producing area of Canada
- pre-modifications — an act or instance of modifying.
- precision casting — investment casting.
- prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
- presentation copy — a copy of a book given by the publisher or author
- press association — an organization formed for the purpose of gathering news for transmittal to its members. Compare news agency.
- primary processes — the generally unorganized mental activity characteristic of the unconscious and occurring in dreams, fantasies, and related processes.